Toy block



FIG. 1 is a perspective view of a toy block showing my new design;

FIG. 2 is a front elevational view thereof, the rear being identical;

FIG. 3 is a right side elevational view thereof, the left side elevational view being identical; and,

FIG. 4 is a top plan view thereof, the bottom plan view being identical. 

The ornamental design for the toy block, as shown and described. 